Steel bearing for disks



H. B. BOZARD.

STEEL BEARING FOR DISKS.

I APPLICATION FILED MAR. 14. 1919.

1,328,787, 7 I Patented Jan. 20, 1920.

UNIT D .sTATEs PATENT oniuon H O 0mm. 0F H M eQm s ears sere e assesse ie WTEIil-TA- rr'foivlii. H'Ai'zvn's'trnn" doa/I'P NY or cAN ne, LI /rrrnp, A ooaroaemoiv or meagre;

To a M me r wan" 'B lknewn tha -I .A BISQN 3- been, a citizfiiofthe United States, r idingfat Hamilton, in the county of'Went L Pmv of --v ntarie" ?ele nl 9t vG nag a a e nvented "i W eslnesetv wlmp feremen I n v T %l; gs fl-Q1? Pulse. of i li e e rs i a fe s..-Q ser an peeifi et i This i v; 'T ion rel te e an EP QWPQQEW in disk drills, and inorej particulfarly,tothat class of drills known asdeuble disk.

The object of the invention is to provrde improved teen er drills W111; take p small spa e a e si y lu 'iea ed, and can beremoved andgrepla'ced eas ly and qu c lya a.

A further object is to provlde a construction of bearing that is simple to manufacture, and because ofthe improyedlubrlcatingfacilities will have along life.

In the accompanying draw ng I have illustrated one embodiment of my invention, and

Figure 1 shows a sideelevation of a portion of a disk drill having my improved bearing thereon, a part of the d sk belng broken away;

Fig. 2 is a seetional view taken on'line 9f Fie- 1 and is a detail view shgwingthe'construction of the bearing The ame 1 q thedmll r, ereieery o s tion, a d slme ided with a depending a 9917. 11 W Q arn -sti e, p d e bear n sa The boot 11 is rovi ded with an oil duct 12, which extends downwardly therein to a central oil chamber 13' formed at the lower end of the boot. The oil chamber 1 3 is enlarged as clearly shown in Fig. 2, and extends somewhat belew the "center'line of the bearing in order to provide a pocket in which small particles of grit and dlrt, which may work down through the oil duct, will be collected. The lower end of the boot has outwardly extending transverse openings 14, and the outer surfaces of the lower end of the boot are milled to provide a uniform surface to contact with the disks whereby the disk blades will be properly fitted and lined up.

Bearing blocks 15 are secured to the lower end of the boot by means of a transversely Specification of Letters Patent.

STEEL BEARING FOB, ms s.

x end n be 6. the b ck eing p i ed with central apertures 17, generally square in outline, and havingcut away portions 18 d i o :illbw Q t Pa sa e bf 9 eet a y froni the central be r ngchan ber to oil rew n Packe he eina e d scrib boltf lb is formed adjacent its outer ends w th uar d i r i s. 9,.,whie en ag -W th the uer dloreni s in h bear b cks and prevent the rotation of these bloeks. desired, washers 20 may be interposed between the bearing. blocks and the boot in Order Pr er ypac t b a k an ts secureaproper bear ng contact between the lo k and t sk Th d s 21 e e lap the outer portionsof the bearing blocks as shown at 22, and have a bearing contact fiher ti d k and l k P fer b y being formed of hardened steel, Housings 23 are secured to the disks, as shown in Fig. 2, and these housing are spaced from the central apertures of the disks, extend outwardly, and have bearing contact with the blocks 19, as shown at 24. The housings are formed with central screw threaded apertures 25, which are closed by means of suitable plugs 26. a

As illustrated in Fig. 2, annular pockets 27 are formed between the outer walls of the housings 23and the bearing blocks 15, these pocketsbeing provided to retain a supply of lubricant which vflows outwardly from the centralcharnber 13. Specialattention is directed 'to the construction of thesepockets, this construction being of great practical importance. As described above, the, disks 21 have a bearing contact with the bearing blocks 15, as shown at- 22, the reference character 28 indicating the inner limit of this bearing contact. This point of contact maybe termed the live joint, where the oilwhich is being used to lubricate the bear ing can escape. It will be observed that the oil illustrated in the oil pockets 27 in Fig. 2 is disposed below a plane passing through these live joints indicated at 28; therefore, a supply of oil will be always available to lubricate the bearing between the disks and the'blocks 15, and between the housings and the blocks 15. I

In the ordinary construction, provision has not been made to provide a pocket of Patented Jan. 20, 1920. sensation ,iileel emh 14, 19 eri Ne 2 2,

retained, and so arranged that the oil will not escape through the live joints of the bearing.

It is believed that the operation of the construction will be clear from the above de scription, but the following brief outline of the operation is given.

The lubricant is supplied to the oil duct 12 in the boot 11, and flows downwardly through this duct to the central chamber 13.

From this chamber it passes outwardly at each side through the cut-away portions 18 of the bearing blocks to the pockets formed between the housings 23 and the bearing blocks. As stated above, the oil tends to flow to the outer portions of the pockets, but owing to the fact that the pockets extend below the live joint, or the inner point of bearing contact between the disks and the bear ing blocks, a supply of oil is always available, and the supply doesnot escape through the live joints.

From the above description, it will also be seen' that it is a very simple matter to assemble and disassemble this bearing, it being merely necessary to remove one of the plugs 26, and by means of a wrench inserted through the aperture of the housing to remove the nut carried by the bolt 14. When this nut has been removed the bearing may be taken apart without further trouble.

While I have, in the above specification, shown one embodiment of my invention, it is to be understood that theinvention is capable of modification. Changes, therefore, in the constrution and arrangement of parts may be made without departing from the spirit and scope of the invention as dis closed in the appended claims.

Claims:

1. In a disk drill, the combination with a support, of a pair of disks having bearing contact with said support, and a pair of housings having oil pockets therein extending below the inner points of bearing contactbetween said support and said disks.

2. In a disk drill, the combination of a support, bearing blocks carried by said support, a pair of disks having bearing contact with said blocks, and a pair of housings carried by said disks and inclosing said bearing blocks, said housings having pockets therein between the walls of said housings and said blocks, said pockets extending below ber, a pair of bearing blocks secured to said support and having apertures registering with the apertures of said support, a pair of disks having bearing contact with said blocks, said disks'carrying a palr of housings inclosing said bearing blocks and having pockets therein between the outer walls of said housings and said blocks, said blocks being provided with oil passages leading from the central. oil chamber to said pockets.

4. In a disk drill, a support having an oil duct leading to a central oil chamber, said support having outwardly directed apertures leading from said oil chamber, bearing blocks secured to said support and having apertures registering with the apertures of said support, a pair of disks having bearing contact with said blocks, single means for securing said blocks to said support, housings carried by said disks and inclosing said blocks, said housings having apertures formed therein between the outer walls thereof and said blocks, said pockets extending below the inner points of bearing contact between said disks and said blocks.

5. In a disk drill, a support having an oil chamber therein, and an oil duct leading to said chamber, said support having outwardly directed apertures, bearing blocks secured to said support and having apertures registering with the apertures of said support, single means for securing said bearing blocks to said support, said blocks HARRISON B. BOZARD.

VVitnessed by STANLEY N. SLATER,

PERLE W. SPRINGER.

being provided with oil passages leading to ing bearing contact with said blocks, hous- 

